Vaccariahispanica – cowcockleDistribution: Occurring in scattered locations across Washington; widely distributed throughout most of North America.Habitat: Roadsides, railways and old fields.Origin: Introduced from EuropeFlowers: May-August

Vacciniumcespitosum – dwarf bilberry, dwarf huckleberryDistribution: Widely distributed in the mountainous areas of Washington; Alaska south to California, east to Colorado; across southern Canada and the northern tier of states from Minnesota to Maine.Habitat: Moist rocky ridges and meadows, mid- to high elevations in the mountains.Origin: NativeFlowers: May-July

Vacciniumcorymbosum – high-bush blueberryDistribution: Widespread and native in eastern United States; introduced in Washington.Habitat: Open swamps, sandy margins of ponds and lakes.Origin: IntroducedFlowers: May - June

Vacciniumdeliciosum – Cascade blueberry, Rainier blueberry, blueleaf huckleberryDistribution: Ocurring in the Olympic and Cascade Mountains of Washington; British Columbia south to California, east to Idaho.Habitat: Forest openings and mountain meadows, mid- to high elevations.Origin: NativeFlowers: May-July

Vacciniummacrocarpon – cultivated cranberry, large cranberryDistribution: In scattered locations in lowlands west of the Cascades crest; introduced British Columbia south to California; native eastern NorthOrigin: Introduced from northeastern United StatesFlowers: May - June

Vacciniummembranaceum – square-twig blueberry, tall huckleberry, thin-leaved huckleberryDistribution: Widely distributed throughout forested and mountainous areas of Washington; British Columbia south to California, east the Rocky Mountains; Ontario and Michigan.Habitat: Common in dry to moist coniferous forests and open areas, moderate to mid-elevations in the mountains.Origin: NativeFlowers: May-July

Vacciniummyrtilloides – velvet-leaf blueberryDistribution: British Columbia east to Labrador, and in the northern tier of states, Montana to West Virginia; Okanogan County in Washington.Habitat: Mountain meadows, forest openings, bogs and barrens.Origin: NativeFlowers: May - June

Vacciniummyrtillus – dwarf blueberry, low blueberryDistribution: Chiefly east of the Cascades, British Columbia to Oregon, east to Montana, and south in the Rockies to Arizona and New MexicoHabitat: Forest openings, mid-elevations in the mountainsOrigin: NativeFlowers: May - August

Vacciniumovalifolium – Alaska blueberry, oval-leaf blueberryDistribution: Occurring in forested and mountainous areas throughout Washington; Alaska south to Oregon, east to Idaho, and then scattered areas to the Atlantic Coast.Habitat: Openings in coniferous forests, moderate to fairly high elevations.Origin: NativeFlowers: May-July

Vacciniumovatum – evergreen huckelberryDistribution: Occurring west of the Cascades crest in Washington; British Columbia south to California.Habitat: Coniferous forests at low elevations.Origin: NativeFlowers: April-August

Vacciniumoxycoccos – small cranberryDistribution: Occurring chiefly west of the Cascades crest in Washington; Alaska south to California, east to Idaho, across Canada; from the upper Midwest to the Atlantic coast.Habitat: Usually in sphagnum bogs.Origin: NativeFlowers: May-July

Vacciniumparvifolium – red huckleberryDistribution: Chiefly west of the Cascades in Washington; Alaska to California on both sides of the Cascades, but much more common on the west sideHabitat: Moist woods, sea level to mid-elevations in the mountains.Origin: NativeFlowers: April-June

Vacciniumscoparium – grouseberryDistribution: Occurring on both sides of the Cascades crest in Washington; British Columbia south to California, east to Colorado.Habitat: Open, dry forests, mid- to high elevations in the mountains.Origin: NativeFlowers: May-August

Vacciniumuliginosum – bog bilberry, bog blueberryDistribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to Nevada, Utah, Wyoming and Montana, east across northern North America to the Atlantic.Habitat: Bogs and fens from low elevation to subalpine.Origin: NativeFlowers: June-August

Vahlodeaatropurpurea – arctic-hair grassDistribution: Alaska south to the high mountains of California, east to Newfoundland and New Hamshire.Habitat: Mountain meadows, streambanks, and lake margins to alpine ridges.Origin: NativeFlowers: July - August

Valerianacolumbiana – Wenatchee valerianDistribution: Wenatchee Mountains and Cle Elum Ridge, east slope of the Cascades, in WashingtonHabitat: Rocky, open slopes, often on basalt, at mid-elevations in the mountainsOrigin: NativeFlowers: May - June

Valerianadioica – woodland valerianDistribution: British Columbia to Nova Scotia in Canada, south to northwest Washington, central Idaho and northwest Wyoming.Habitat: Moist places in the mountains, often in wet meadows.Origin: NativeFlowers: May - July

Valerianaedulis – tobacco-root, edible valerianDistribution: Occurring in the eastern region of Washington; Southern British Columbia south into Washington, Idaho, and Montana, east to Ontario and Ohio.Habitat: A wide variety of open, somewhat moist habitats, from the foothills to rather high elevations in the mountains.Origin: NativeFlowers: June-August

Valerianascouleri – Scouler's valerianDistribution: Mostly west of the Cascade summits, British Columbia to CaliforniaHabitat: Wet meadows and moist woods, sea level to mid-elevations in the mountainsOrigin: NativeFlowers: April - July

Valerianasitchensis – Sitka valerianDistribution: Widely distributed throughout much of Washington; Alaska to California, east to Idaho and Montana.Habitat: Common in moist areas at mid- to high elevations in the mountains.Origin: NativeFlowers: June-August

Valerianellalocusta – lamb's-lettuceDistribution: Occurring on both sides of the Cascades crest in Washington; British Columbia south to California, east to the Rocky Mountains; eastern half of North America east of the Great Plains.Habitat: Moist, open places, often in disturbed soil.Origin: Introduced from EuropeFlowers: April-May

Vallisneriaamericana – wild celery, American eelgrass, tapegrassDistribution: Native from Quebec to Texas and Florida; introduced in Dry Falls Coulee, Grant County, and several lakes west of the Cascades in Washington; also in Oregon and IdahoHabitat: Ponds, lakes and quiet streamsOrigin: Introduced from eastern North AmericaFlowers: July - September

Vancouveriahexandra – white inside-out-flowerDistribution: West of the Cascades, south Puget Trough, Washington, to northern CaliforniaHabitat: Moist, shady woods, low to moderate elevationsOrigin: NativeFlowers: May - June

Ventenatadubia – VentenataDistribution: Chiefly in the eastern portion of Washington; British Columbia south to California, east to the Rocky Mountains; also in eastern North America.Habitat: Roadsides, pastures, crop land, and other disturbed sites.Origin: IntroducedFlowers: June-July

Veratrumcalifornicum – California false helleboreDistribution: Occurring on both sides of the Cascades crest in Washington; Washington south to California, east to the Rocky Mountains.Habitat: Moist meadows and woodlands, lowlands to subalpine.Origin: NativeFlowers: June-August

Veratruminsolitum – siskiyou wild helleboreDistribution: Benton County, Oregon, south into northern California.Habitat: Open prairies to thickets, and forested or open rocky slopes.Origin: NativeFlowers: July - September

Veratrumviride – American false hellebore, green false hellebore, Indian-pokeDistribution: Widely distributed throughout the forest and mountainous areas of Washington; Alaska south to California, east to the northern Rocky Mountains; eastern North America from Alabama to Newfoundland.Habitat: Moist meadows and woodlands, lowlands to subalpine.Origin: NativeFlowers: June-September

Verbascumblattaria – moth mulleinDistribution: Ocurring on both sides of the Cascades crest in Washington; introduced over most of the United States.Habitat: Open areas in waste ground, tolerant of moist to dry.Origin: Introduced from EurasiaFlowers: May-September

Verbascumthapsus – flannel mullein, great mulleinDistribution: Distributed widely throughout Washington; widely distributed throughout North America.Habitat: Common on open, disturbed ground, roadsides and logged areas in the mountains.Origin: Introduced from EurasiaFlowers: June-September

Verbascumvirgatum – wand mulleinDistribution: Lowland western Washington; Washington south to California, east across the southern U.S. and in eastern North America.Habitat: Open disturbed areas at low elevations.Origin: IntroducedFlowers: June-August

Verbenabracteata – carpet vervainDistribution: Occurring chiefly east of the Cascades in Washington; widely distributed throughout North America.Habitat: Disturbed open areas in natural and impacted settings including roadsides and waste lots.Origin: NativeFlowers: May-September

Verbenastricta – hoary vervainDistribution: Occurring in the northeastern region of Washington; widely distributed throughout much of the U.S. and northeastern Canada.Habitat: Roadsides and other dry, open places.Origin: NativeFlowers: June-September

Veronicaamericana – American brooklime, American speedwellDistribution: Widely distributed throughout Washington; widely distributed throughout most of North America except southeast corner of U.S.Habitat: Wet places, lowlands to moderate elevations in the mountains.Origin: NativeFlowers: May-July

Veronicaanagallis-aquatica – blue water speedwellDistribution: Occurring chiefly east of the Cascades crest in Washington; widely distributed throughout much of North America.Habitat: In or along slow-moving streams in the lowlands.Origin: Introduced from EuropeFlowers: June-September

Veronicaarvensis – corn speedwell, wall speedwellDistribution: Introduced in much of North America; uncommon in the Pacific NorthwestHabitat: Disturbed ground, gardens and roadsidesOrigin: Introduced from EurasiaFlowers: April - September

Veronicacatenata – chain speedwellDistribution: Widespread in the United States and Canada; occasional at lower elevations in the Pacific Northwest.Habitat: Slow-moving streams and ditches.Origin: Introduced from EuropeFlowers: June - July

Veronicachamaedrys – Germander speedwellDistribution: Introduced chiefly west of the Cascades; more common in eastern United StatesHabitat: Disturbed ground, lawns and gardensOrigin: Introduced from EuropeFlowers: May - June

Veronicacusickii – Cusick's speedwellDistribution: Occurring on both sides of the Cascades crest in Washington; British Columbia south to California, east to Idaho and Montana.Habitat: Open, moist, rocky slopes at high elevations in the mountains.Origin: NativeFlowers: July-September

Veronicafiliformis – thread-stalk speedwellDistribution: Introduced west of the Cascades, British Columbia to California, and in Idaho; and Michigan to New York, south to West Virginia in the eastHabitat: Weed of lawns and gardensOrigin: IntroducedFlowers: April - June

Veronicahederifolia – ivy-leaf speedwellDistribution: Occurring in scattered locations in Washington; British Columbia south to Oregon and Utah; other scattered locations in central and eastern North America.Habitat: Waste places, disturbed soil.Origin: IntroducedFlowers: April-June

Veronicaofficinalis – Paul's betony, common speedwellDistribution: Occurring chiefly west of the Cascades crest in Washington; widely distributed throughout much of the northern half of North America and the southeastern U.S.Habitat: Weed of wastelots, and other disturbed open and forested areas.Origin: Introduced from EuropeFlowers: April-July

Veronicaperegrina – purslane speedwellDistribution: Widely distributed throughout most of Washington; widely distributed throughout North America.Habitat: Swales, wet meadows, stream banks, and other moist places, from the lowlands to moderate elevations in the mountains.Origin: Both native (var. xalapensis) and introduced (var. peregrina) varietiesFlowers: April-September

Veronicascutellata – grass-leaf speedwell, marsh speedwell, skullcap speedwellDistribution: The northern two-thirds of the temperate zone in North America; also in Eurasia.Habitat: Wet places, from the lowlands to moderate elevations in the mountains.Origin: NativeFlowers: May - September

Veronicaserpyllifolia – thyme-leaved speedwellDistribution: Widely distributed throughout Washington; widely distributed throughout most of North America.Habitat: Moist meadows and disturbed sites, lowlands to mid-elevations in the mountains.Origin: Both native and introducedFlowers: May-August

Veronicawormskjoldii – American alpine speedwellDistribution: Both sides of the Cascades in Washington; Alaska to California, east to Montana, Colorado and New Mexico.Habitat: Moist ground and seeps, mid- to high elevations in the mountains.Origin: NativeFlowers: July-September

Viburnumedule – high-bush cranberry, squashberryDistribution: Widely distributed on both sides of the Cascades in Washington; Alaska south to Newfoundland, south to northern Oregon, Colorado and Pennsylvania.Habitat: Moist woods and swamps.Origin: NativeFlowers: May-July

Viburnumellipticum – western blackhaw, oval-leaved viburnumDistribution: West of the Cascades in Washington; southern Washington to northern California.Habitat: Thickets, bottom lands and open woods.Origin: NativeFlowers: May-June

Viburnumopulus – highbush cranberryDistribution: Scattered localities throughout Washington; British Columbia south to the Columbia River Gorge, east to Idaho and Montana.Habitat: Moist woods at low to moderate elevations.Origin: NativeFlowers: May-July

Viciaamericana – American vetchDistribution: Widely distributed througout much of Washington; widely distributed throughout most of North America except the southeastern U.S.Habitat: Forest openings from low to mid-elevations in the mountains.Origin: NativeFlowers: May-July

Vicialathyroides – spring vetchDistribution: Occurring in the Puget Sound lowlands in Washington; British Columbia south to California; also in southeastern U.S.Habitat: Disturbed areas including wastelots, roadsides, and fields.Origin: IntroducedFlowers: April-June

Vicianigricans – giant vetchDistribution: Along the coast in Washington; coastal from Alaska to California, inland to the Willamette Valley in Oregon.Habitat: Near streams or forest clearings at low elevations.Origin: NativeFlowers: May-July

Viciasativa – tare, common vetchDistribution: Occurring on both sides of the Cascades crest in Washington, but more common on the west side; widely distributed throughout most of North America.Habitat: Disturbed ground, yards and roadsides at low elevations.Origin: IntroducedFlowers: April-July

Viciatetrasperma – slender vetchDistribution: Introduced and occasionally escaping west of the Cascades in Washington and Oregon, south to California.Habitat: Waste ground and disgturbed soil.Origin: IntroducedFlowers: May - August

Viciavillosa – hairy vetch, winter vetch, woolly vetchDistribution: Occurring on both sides of the Cascades in Washington; distributed widely throughout much of North America.Habitat: Disturbed meadows, grasslands, prairies, roadsides and other open areas.Origin: IntroducedFlowers: June-September

Vincamajor – greater periwinkleDistribution: Occasionally escapes from gardens, west side of the Cascades.Habitat: Moderately moist soil.Origin: Introduced from EuropeFlowers: June - August

Vincaminor – lesser periwinkleDistribution: Introduced in scattered locations across Washington, moreso in western lowlands; occurring in much of eastern North America, where it is considered invasive.Habitat: Somewhat moist disturbed areas.Origin: Introduced from EuropeFlowers: March-May

Violaadunca – early blue violetDistribution: Occurring throughout Washington; ranging across North America.Habitat: Dry to moist meadows and open woods, moderate to high elevations in the mountainsOrigin: NativeFlowers: April-August

Violaarvensis – European field pansyDistribution: Both sides of the Cascades in Washington; introduced throughout the United States and Canada.Habitat: Frequently escapes from cultivation.Origin: Introduced from EuropeFlowers: March-June

ViolacanadensisDistribution: British Columbia south through Washington and Oregon, east to the Atlantic Coast.Habitat: Usually on loamy soils, moist woodlands and forests at moderate elevations.Origin: NativeFlowers: May-July

Violaglabella – pioneer violetDistribution: Both sides of the Cascades in Washington, Alaska to California, east to Montana.Habitat: Moist woods and stream banks, low to mid-elevations in the mountains.Origin: NativeFlowers: March-July

Violahowellii – Howell's violetDistribution: West of the Cascade crest in Washington; southern British Columbia south to northern California.Habitat: Moist woods and prairies at low to moderate elevations.Origin: NativeFlowers: April-May

Violalanceolata – lance-leaved violetOrigin: Introduced from eastern and central North AmericaFlowers: May - June

Violamacloskeyi – small white violetDistribution: British Columbia to Alberta, south in the mountains to California.Habitat: Boggy and wet ground from low to mid-elevations in the mountains.Origin: NativeFlowers: May-August

Violanephrophylla – LeConte violet, northern bog violetDistribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to Newfoundland, south on the east side of the Cascades to California, east to Arizona.Habitat: Moist places, especially in meadows and along streams.Origin: NativeFlowers: May-July

Violaodorata – sweet blue violetDistribution: In scattered locations throughout Washington; introduced and escaping at various location in the United States.Habitat: Sheltered, disturbed areas in somewhat moist soil.Origin: IntroducedFlowers: March - May and August - September

Violaorbiculata – darkwoods violet, evergreen yellow violet, round-leaved violetDistribution: Occurring on both sides of the Cascades crest in Washington; British Columbia south to Oregon, east to Montana and Wyoming.Habitat: Open woods, mid- to high elevations in the mountains.Origin: NativeFlowers: May-August

Violapalustris – marsh violetDistribution: British Columbia to California, east to the Rocky Mountains and near the Canadian border to Maine and LabradorHabitat: Moist meadows and streambanks, low to mid-elevations in the mountainsOrigin: NativeFlowers: May - July

ViolapurpureaDistribution: Chiefly east of the Cascades, Okanogan County, Washington, to California, east to Montana, Wyoming and ArizonaHabitat: Open, rocky, fairly dry slopes, moderate to high elevations in the mountainsOrigin: NativeFlowers: May - August

Violasempervirens – evergreen violet, redwood violetDistribution: Occurring west of the Cascades crest in Washington; Brithish Columbia south to California.Habitat: Moist woods, low to mid-elevations in the mountains.Origin: NativeFlowers: March-June

Violasheltonii – fan violet, shelton's violetDistribution: Chiefly east of the Cascades, from near Cle Elum, Kittitas County, Washington, south to Baja California, east to IdahoHabitat: Chaparral or open forest, often under ponderosa pineOrigin: NativeFlowers: April - June

Violatricolor – Johnny jump-upDistribution: Garden escape in scattered locations throughout Washington; similarly escaped throughout most of North America.Habitat: Disturbed areas near cultivated setting in towns and cities.Origin: IntroducedFlowers: April - September

Vulpiamyuros – rat-tail six-weeks grassDistribution: Occurring on both sides of the Cascades crest in Washington; occurring throughout most of North America except for the Great Plains and eastern Canada.Habitat: A weedy species of waste places and dry, overgrazed areas.Origin: IntroducedFlowers: April-June